When comparing Chart.js vs KoolChart, the Slant community recommends Chart.js for most people. In the question“What are the best JavaScript charting libraries? ”Chart.js is ranked 2nd while KoolChart is ranked 9th. The most important reason people chose Chart.js is:

The library contains a set of 6 charts and is 11Kb gzipped, this makes its loading time and page impact low.

Pros

Pro

Lightweight and fast

The library contains a set of 6 charts and is 11Kb gzipped, this makes its loading time and page impact low.

Pro

Clear documentation

The chart.js documentation is well organized and provides detailed information on using each feature.

Pro

Responsive charts

The charts are fully responsive, meaning they resize based on the viewport width.

Pro

Event handling and user interactivity

If you have data that meets certain conditions, you can highlight it or create another chart at that data point. Also, you can use the built-in data editor to simulate the chart while directly modifying the chart data